4-21. Repair Motorized Water Pump Assembly. (Figure 4-11)
This task covers:
INITIAL SETUP :
Tool kit, general mechanic's,
Water pump/motor assembly removed
as specified in paragraph 3-32 .
Stator P/N 330-1006-001
Rotor P/N 320-1569-002
Universal joint P/N 320-1612-000
Mechanical seal P/N 320-2424-000
Lubricating oil, Item 20, Appendix C
a. Position motorized pump (14) on a clean flat surface.
b. Remove six machine screws (7) securing housing (6) to motorized pump.
c. Separate and remove housing (6) from pump.
d. Remove pipe plug (8) from housing.
e. Slide stator (9) off of rotor (5).
f. Separate rotor (5) from universal joint (3) by using a punch to remove pin (4). Support rotor when
removing pin. Retain pin for assembly.
g. Separate universal joint (3) from motor shaft by using a punch through outlet port on pump body to
remove pin (2). Retain pin for assembly.
h. Slide universal joint off of motor shaft and out of motorized pump (14).
If any part of mechanical seal is broken or damaged, the complete seal assembly
must be replaced.
i. Carefully slide mechanical seal (1) off motor shaft and out of motorized pump (14).